MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


RemcosRAT


Vendor detections: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6
SHA3-384 hash: d03a10d9e0fcc7a5eddc1cbd457f4b3f8d76dbf35c20d17679c8a554c48e13d78e9c675bb7686e20294da087a9573cfe
SHA1 hash: 837158c064fe0154927031c5e6484d95110bda7d
MD5 hash: e60ac48d21310c8987ccf79e3b3c2f87
humanhash: oregon-juliet-october-whiskey
File name:Adjunto_Serfinanza_5858844291938459116873487_491988431289246447592_62430366152371375680582149_514763126252078325654_pdf.
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'891'264 bytes
First seen:2021-05-10 06:29:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:zx8zuyRKLBXWOIan0hdSAb+bG7h4xwjd4b3dc6W7gLSbNqEzFYAVX3hg7vgPy95m:G0tfqVLWc6Eblm9BFsYAyR+m+rn
Threatray 1'873 similar samples on MalwareBazaar
TLSH C3D50605577C08857BC7BA63BFAE04C29EBB4D3173B6A00AB05A9B091BD5F463C49787
Reporter abuse_ch
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/153715/
Detection(s):
SecuriteInfo.com.ArtemisE60AC48D2131.6925.2647.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Adding exclusions to Windows Defender
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/721165
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 409524 Sample: 78325654_pdf Startdate: 10/05/2021 Architecture: WINDOWS Score: 100 27 Multi AV Scanner detection for domain / URL 2->27 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 8 other signatures 2->33 7 78325654_pdf.exe 6 7 2->7         started        process3 file4 23 C:\Users\user\...\78325654_pdf.exe.log, ASCII 7->23 dropped 25 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 7->25 dropped 35 Adds a directory exclusion to Windows Defender 7->35 37 Injects a PE file into a foreign processes 7->37 11 powershell.exe 26 7->11         started        13 AdvancedRun.exe 1 7->13         started        15 78325654_pdf.exe 7->15         started        17 5 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 AdvancedRun.exe 13->21         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-05-10 06:30:15 UTC
AV detection:
7 of 46 (15.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ga36oy5aoem2haoay4k566o3o7l3h4p6ucmbazkxocqgk6evwta._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
126f752c7dec6c513804a0737e5d0a03cd8a1082923d68aec35979f3a7db7d60
RemcosRAT
17828f7e3aa63c317b04baf8c3dbd4e069c12f66f45ae438094ae17cb7f5c7b9
RemcosRAT
337a895245dcdbe522c4320dbe1dfd62e346aecad8246f9b895a5460211865b0
RemcosRAT
360dc7aa2889b1ed05b553eccab73348de2fae89cd7742e64422712298b670ca
RemcosRAT
3781825b53e1bcc9ba8bd6790b399bda60bfc588e980670c54b98b852d639d94
RemcosRAT
673500aef66cdad3be016e872ca2cf17bd814857bf53f7ef24a0f534a3a47dcd
RemcosRAT
92aaa412fd4384f56646d3b70ae7e8f4e26e436501ac61b9dd29652162a2997c
RemcosRAT
a11a2be54b4e16b1ad08516b46da1ded79de8b7a31e4cf7537e21abce1639816
RemcosRAT
a56b83419b879f415fcd6961f31ad0345305288cd67b61ce4a533f8c2ae12c25
RemcosRAT
fd81af867988782d16df1b79f602163f297ebb1631f4d1542c4828d0fb5a7900
RemcosRAT
+ 1'863 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion trojan
Link:
https://tria.ge/reports/210510-c5g4zkyd3e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Unpacked files
SH256 hash:
97f87dcf48f8f968e6bc18348437bd5f4300690f815fbef7554aaa12222b92fe
MD5 hash:
a5bd011ae96a542e708407b78dcfddb2
SHA1 hash:
98d7120af40a8a0cc1a2f0befd4ce0ac4a9f9963
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d8853705-e7b3-4e5a-99ae-62c0abb2bdae/
SH256 hash:
e485d2dab059f3025f58f10f696fbbcafd53e4c72e80d8f7aeff7156453d0ecf
MD5 hash:
889660725ba84a02d16aa89d6d15da2f
SHA1 hash:
ab3549812649501071c1d2119fb2ec83bb460371
Link:
https://www.unpac.me/results/d8853705-e7b3-4e5a-99ae-62c0abb2bdae/
SH256 hash:
3da80bd8e18bf2ef5e28f5e2e0d2095b0d4e65391800ce18f9a18859d7beb220
MD5 hash:
5dbed7594d4c8d71c1882692e6776bf0
SHA1 hash:
8552a2f2afca501945fe57c1875970b6f777f709
Link:
https://www.unpac.me/results/d8853705-e7b3-4e5a-99ae-62c0abb2bdae/
SH256 hash:
f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6
MD5 hash:
e60ac48d21310c8987ccf79e3b3c2f87
SHA1 hash:
837158c064fe0154927031c5e6484d95110bda7d
Link:
https://www.unpac.me/results/d8853705-e7b3-4e5a-99ae-62c0abb2bdae/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/153715/

Comments